Cabinet for pole-changers and batteries.



R. 0. STONE:

CABINET FOR POLE GHANGBRS AND BATTERIES.

APPLICATION FILED OUT. 27, 1910.

1,004,101. 1111111111111 Sept. 211 1911.

2 BHEIITS-SHEET 1.

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R. G. STONE.

CABINET FOR POLE GHANGERS AND BATTERIES.

APPLICATION FILED 0017127, 1910.

1,004,101. Patented Sept. 26, 1911.

2 SHEETS-SHEET 2.

COLUMBIA PLANOGRAPM COUWASHINGTON n. c.

UNITED STATES PATEI UFFICE.

RICHARD C. STONE, OF MUNCIE, INDIANA, ASSIGNOB T0 WARNER ELECTRICCOMPANY,

OF MUNCIE, INDIANA, A. GOBPGRATION OF INDIANA.

CABINET FOR POLE-CHANGERS AND BATTERIES.

To all whom it may concern:

Be it known that I, RICHARD C. STONE, a citizen of the United States,residing at Muncie, in the county of Delaware and State of Indiana, haveinvented a new and useful Cabinet for Pole-Changers and Eatteries, ofwhich the following is a specification.

In the operation of telephone exchanges in small towns, the desiredpulsating and alternating current is obtained by means of a vibratorypole changing apparatus operating upon a current supplied from aplurality of batteries which, quite commonly, are of the dry cell type.In the operation of such an apparatus, it has heretofore been a matterof considerable difficulty to replace exhausted batteries which furnishthe current for the pole changer which converts the current intoalternating and pulsating currents, or the closed circuit battery whichoperates the vibratory of the pole changer.

The object of my present invention, therefore, is to provide a cabinetwhich may be conveniently made practically dust proof in which theentire equipment of dry cell batteries for the alternating and pulsatingcurrent, the closed circuit cell for the vibratory, and the polechanging apparatus itself, may be conveniently mounted in such mannerthat any portion of the apparatus may be readily withdrawn forinspection, adjustment and replacement without disturbing the variouselectrical connections and, so far as the dry cells are concerned,without interfering with the continued operation of the pole changer.

The accompanying drawings illustrate my invention.

Figure 1 is a perspective view of my improved cabinet fully equipped,the front door being removed, the pole changer shelf drawn out, and oneof the dry cell drawers also drawn out; Fig. 2 is a diagram showing therelative arrangement of parts and the wiring, and Fig. 3 a detailshowing a convenient structure by means of which withdrawal of any oneof the dry cell drawers may be accomplished without discontinuing themajor portion of the supply of alternating and pulsating current of themain line.

In the drawings, 10 indicates a suitable inclosing casing convenientlydivided into two vertical chambers by a central partition 10. Mounted inthe upper part of one of Specification of Letters Patent.

Application filed October 27, 1910.

Patented Sept. 26, 1911.

Serial No. 589,450.

extending to the binding post of the pole changing apparatus, the lengthof the cable 15 being sufficient to permit withdrawal of shelf 11 tobring the pole changing apparatus into position for inspection andadjustment, without disturbing any connections. Arranged a suitabledistance below shelf 11 is another forwardly withdrawable shelf 16 uponwhich is placed the wet cell 17 provided to supply a continuous currentto the vibratory of the pole changing apparatus. This cell 17 isconnected by wires 18, 19 with the binding post bar 14, the said wires18 and 19 being of sutficient length to permit withdrawal of the shelf16 enough to bring the cell 17 into position for convenient access. Theconnections are also made on this terminal for the alternating and pulsating connections to the switch board. Slidably mounted in theremaining portion of the cabinet 10 are several drawers 21, 21 which arevertically separated a sufficient distance to receive the upstanding drycells 22. Each drawer 21 is preferably divided into a plurality ofpockets by longitudinal and transverse partitions 23 so that each cell22 stands in a separate pocket. The several cells of each drawer areconnected together in series and the end cells of each group connectedby suitable connections with the adjacent group. In the diagram shown inFig. 2 these connections are indicated as wires 25 which have sufficientslack to permit the withdrawal of any drawer enough to fully expose thecells in that drawer. In order, however, to permit the completewithdrawal of any group of cells without interfering with the continuedoperation of the apparatus, I may carry the wires from the end batterycells 22 of each group to contact fingers 26, 26 (Fig. 3) each of whichis adapted to engage a terminal 27 when drawer 21 is pushed back withinthe casing. Each terminal 27 is connected to a similar terminal of anadjacent group and one or both of these terminals should have suflicientflexibility to be laterally moved when the terminal 26 strikes it. Thetwo terminals 27 may directly contact with each other when the drawer iswithdrawn or a connecting bar 28 may be provided, the arrangement beingsuch that, when the terminals 26 are pushed into engagement with theterminals 27, the terminals 27 will be separated from each other. Bythis arrangement any group of battery cells 22 may be entirely withdrawnfrom the apparatus without interfering with the continuous supply ofcurrent to the main line, this current merely reduced by the amount ofwithdrawal.

I claim as my invention:

1. The combination, with a containing casing, of a laterallywithdrawable support in said casing, a pole changer mounted upon saidlaterally withdrawable support, a second laterally withdrawable supportin said casing, a constant current battery mounted upon said secondlaterally withdrawable support, a plurality of laterally withdrawablebattery supports also mounted in said casing, and wiring between saidseveral parts of such character as to permit lateral withdrawal of thesaid several supports and the apparatus carried thereby withoutinterfering with the electrical connections.

2. The combination, with an inclosing casing, of a laterallywithdrawable pole changer support mounted therein, a pole changermounted thereon, a laterally withdrawable battery support mountedtherein, a continuous current battery mounted on said support,electrical connections between said continuous current battery andvibratory of the pole changer permitting lateral withdrawal of eitherpole changer or the battery without disturbing such connections, aplurality of laterally withdrawable battery drawers also mounted in saidcabinet, and electrical connections between the said several drawers andthe pole changer permitting lateral withdrawal of each of said drawersand the pole changer without disturbing such electrical connection, theelectrical connections between the several drawers being such thatwithdrawal of any drawer will automatically establish a bridgingconnection across the gap produced by such withdrawal.

In witness whereof, I, RICHARD C. STONE. have hereunto set my hand andseal at Muncie, Indiana, this 21st day of October, A. D. one thousandnine hundred and ten.

RICHARD C. STONE. [1,. s]

Vitnesses R01 P. JOHNSON, JOHN E. JOHNSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). 0.

